Clutch.



\A. MUCH.

CLUTCH.

, I I APPLICATION FILED 110V.27. 1916.

1,241,631. Patented oet. 2,1917. l

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frias PATENT ornron.

, ALBERT JAIJ'CI-I, CHICAGO; ILLINOIS.

CLUTCH.

To all whom it may concern: i Be it known that ALBERT JAUCH, a subject of the Emperor of Germany, residing at Chicago, in the county of Cook and State of Illinois, have invented certain newv and useful Improvements in Clutches, 0f which the following is a specification.

My invention relates to clutches and has for its primary object the provision of an improved clutch which shall have improved means for connecting together a rotatable element and a rotatable member.

. A furthe'rjobject of my invention lies in 'the provision" of a clutch having arms 'by means of which great leverage is obtained in f the clutching position.

' this invention consists substantially in the A further object of-my invention lies in the provision of a clutch which shall be easy to assemble, readily mounted upon the ordinary line shaft, and economical to manufacture. j j

I/Viththe'above and other objects in view,

combination, arrangement and construction of-parts all as hereinafter morewfully described, shown in the accompanying draw- 1 ings which form a part of this specification ff.: and illustrate the preferred embodiment of my invention, and more particularly set forth in the subjoined claims.

yIn thedrawings-`r lFigure 1 is a longitudinal section through my invention approximately on line 1--1 of Fig. 3 vand looking in the direction indicated by the arrows;

Fig. 2 is a viewsimilar toFig. 1, illustratfing an adjusted position of the parts;

' Fig. 3 is a section of my invention 'taken on line 3-3 of Fig-1 and looking in the direction indicated bythe arrows;

Fig. 4 is a perspective view of one of the clutch *arms of my invention; and

J-Fig. 5 is'a perspective'view of a portion of aline shaft showing the slotted collar of my invention fixed thereon.

j Reference numeral 10` indicates'a rotatable elementcomprising a lineshaft `of the ordi! 'yf narytype, to which is keyed a` bushing 11 provided for the purpose of holding away `from the shaft 'a pair of clutchl arms to be described. If desired the bushing 11 may lvb'e anintegral part of the shaft 10. Fixed withrelation to the shaft 10 and bushing `11 is an'axially slotted collar 12, the slots 13 of `whichare preferably diametriallyl oppositeea'ch other. j

' I Specification of Letters Patent.` l

Patented Oct. 2, 1917.

Applicationled November 27,1916. Serial No. 133,523.

` Reference numeral 14 indicates a member to be rotated comprising for example, as illustrated,` a pinion 14 adapted to drive a gear 15'. At 16 is shown a sleeve rotatable upon the bushing 11 andv fixed with respect to the pinion 14. The sleeve is enlargedcircumferentially as at 17, and carries an inturned annular flange 1 8, which is removed from they enlargement 17 sufficiently to form anan'n'ular channel 19. The `slotted'collar 12 is reduced at its inner end as at20 where it enters theflange 18, for the purpose of continuing the slots 13 across the channel 19.

Longitudinally disposed within the channels 13 arc a pair of clutch arms 21 which are,transversely channeled as at 22 at their inner ends to receive the flange 18. At their outer'ends' the arms 21 preferably carry set-y screws 23, having rounded inner ends 24 and provided each with a locklnut 25, the rounded inner end 24 standing opposite the line shaft 10. A casing 26 is secured by screws 27 to the outer face of collar 12. This casing extends over the collar and terminates adjacent-to the outer face of the flange 18. A stud 28 projects outwardly from each arm 21 and 'carriesa coil spring 29 the outer end of which abuts against the casing 26. The coil springs 29 maintain arms 21 normally in engagement with the bushing 11, so that the channels 22 are slightly spaced from and exactly alined with `the in turned flange 18. In this manner there is normally no friction between the arms 21 and the fiange 18.'

in holding'the line shaft 10 in fixed relationV to the pinion 14. As seen in Fig. 2, the channeled flange receiving portion of the arm 21 is in each case adjacent the inner end of theA arm, while the application o-f the power to the arm is at its opposite end. Prefer` ably an annular raised shoulder 33 is formed" on the bushing 11 at a pointfsubstantially opposite the bottom of channel 22 of each arm. This shoulder 33 forms the fulcrum i yfor the arm. The fulcrum and load being The extension 20 of collar 12 by projecting into flange 1S and the hollow between the flange and the enlargement 17 formsa lateral supportgfor the circumferential thrust. exerted upon the channeled ends of arms 21 when my invention is in the operative posi-` tion illustrated in Fig. It is ypossible to operatively construct my invention employ-V ing a single arm only but a plurality of arms` results of co-urse in a better balanced clutch.l

V'ile I: have illustrated and described the preferred embodiment of my invention, it will be apparent that one Skilled in the. art canmalre; modifications thereof without departing from the spirit of the invention. I wish therefore not to be restricted to the precise embodiment shown except in so far as theI same is limited in the appended claims.

I claim: j j

1.` In combinationv a rotatable element, a rotatable member, a collar axially slotted and fixed to said element, a sleeve having an annular flange protruding" fromit and fixed to saidv member, clutch arms carried the slotsy of said collar and transversely channeled at one end to receive said flange,- and a tapered device movable against said arms to bind their channeled ends about saidk flange.

2. In combination a rotatable element, a rotatable member, a collar axially slotted and fixed to said element, a sleeve having an annular inturned flange and fixed to said' memben clutch arms carried in the. slots of said collar and transversely channeled at one end to receive saidl flange, and a tapered device movable against said arms, to bind their channeled ends about said flange.

3. In combination a rotatable element, a

rotatable member, a collar axially slotted c and fixed to said element, a sleeve having anannular inturned flange andfixed toA said, member, vclutch arms carried in, the. slots. of saidA collarand transversely channeled at one end to receive said flange, and a tapered device movable against said arms tocbind their channeled ends about said flange, .saidl collar projecting within the flange to form a transverse support for the channeled end sz,

0f, the

4. In, combination a rotatable element, a

rotatable member,` a collar axially slotted and fixed to said element, a sleeve having said collar, projecting intosaid channel, and themselves transversely channeled at yone end to receive said flange, and a tapered device movable against said arms to bind their channeled ends about saidfflange.`

5. In combination a rotatable element, a rotatable member, a collar axiallyV slotted andfixed to said element, a sleeve having an annular inturnedv flange providing an inwardly exposed channelvand fixed to. Said member, clutch armscarried. in the slotsv of said collar, projecting into, said channel,

and themselvestransversely channeled at one f end to receive said flange', a tapered device movable against said arms to bind their channeled ends, about said flange, a casing carried by said element and projecting over the slotsv of said collar, .andcoil springs interposed between each alf-m and saidcasing.v 1

6. In combination a rotatable element, a rotatable member, a collar axially slotted and fixed to1 said elfement, a sleeve having an annular inturned flange providing an in-V wardly exposed channel and fixed to said member, clutch arms carried in the slots of said collar, projecting intox said channel, and themselves: transversely channel-ed at one end, to receive-,said flange, atapered device movable against said arms to bind.I their channeled ends about said flange, a

casing, carried by said element and proj ect-J ing over the slots3 of said collar, and coil springs interposed between each arm and said casing, the outer ends of said .arms

carrying adjustable inwardly exposed anti,i friction pieces for vengagement `withA said tapered device.

7. In combination a rotatable element, aV

element substantiallyl opposite the inner edge of said flangey and means for separat mg the free endsy of said arms.

8. In combination a. rotatable element, a.

rotatable member,y a collar- .axiallyV slotted and fixed to. said element, asleeve hollowed at. one endprovided with an inturned' flange, and fixed to. said member, clutchy arms car; ried in the slots of said'collar andV formed to, receive said flange, a shoulder on said 'element substantiallyopposite the inner edge of saidV fl`ange, means:` for separatilng:v the free endsi of said "arms, and resilientdevices main'ta-iningsaidarms normally out of contact with theflange.

In; testimony whereof I'.l have affixed my signature.

, ALBERT JAUCH.

Qdpiesrf, of this patent may; bve obtainedffor, aye, cents each, by addressing the Commissioner- Q flaftenti, Washingtoml). G. i i 

